1、氫和氧是氣體

Hydrogen and oxygen are gases

2、水含有氫和氧

Water contains hydrogen and oxygen

3、水是由氫和氧合成的

Water is formed from oxygen and hydrogen

4、氫氧燃料電池

hydrogen-oxygen fuel cell

5、氫氧焰

oxyhydrogen flame

6、氫氧機

oxyhydrogen generator

7、氫氧水焊機

oxyhydrogen water welder

8、氫和氧都是化學元素

Both hydrogen and oxygen are elements

9、氫氧焰焊接

oxyhydrogen welding

10、氫氧火焰

oxyhydrogen flame

11、氫氧焰切割

oxyhydrogen cutting

12、氫氧燃料系統

hydrogen-oxygen fuel system

13、氫氧燃料電池

oxyhydrogen fuel cell